|Week|Date|Opponent|Result|Attendance|
|---|---|---|---|---|
|1|September 15, 1974|New York Jets|W 24–16|74,854|
|2|September 22, 1974|at Oakland Raiders|L 27–7|48,108|
|3|September 29, 1974|at Houston Oilers|W 17–7|28,538|
|4|October 6, 1974|Denver Broncos|L 17–14|67,298|
|5|October 13, 1974|Pittsburgh Steelers|L 34–24|65,517|
|6|October 20, 1974|at Miami Dolphins|L 9–3|67,779|
|7|October 27, 1974|at San Diego Chargers|W 24–14|34,371|
|8|November 3, 1974|New York Giants|L 33–27|61,437|
|9|November 10, 1974|San Diego Chargers|L 14–7|48,551|
|10|November 18, 1974|at Denver Broncos|W 42–34|50,236|
|11|November 24, 1974|at Cincinnati Bengals|L 33–6|49,777|
|12|December 1, 1974|at St. Louis Cardinals|W 17–13|41,863|
|13|December 8, 1974|Oakland Raiders|L 7–6|60,577|
|14|December 14, 1974|Minnesota Vikings|L 35–15|35,480|

Question: how many opponents were played twice that season?
Answer: 3